Home / 115,090,224.94-172,486,533.12-86,108,975.74

Finding the Fourth Proportional to 115,090,224.94, 172,486,533.12 and 86,108,975.74

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Solution

The fourth proportional to 115,090,224.94, 172,486,533.12 and 86,108,975.74 is: 129,052,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090,224.94 : 172,486,533.12 = 86,108,975.74 : x
  2. Step 2: Convert to fraction form
    115,090,224.94/172,486,533.12 = 86,108,975.74/x
  3. Step 3: Cross multiply
    115,090,224.94x = 172,486,533.12 × 86,108,975.74
  4. Step 4: Simplify right side
    115,090,224.94x = 14,852,638,695,906,786
  5. Step 5: Solve for x
    x = 14,852,638,695,906,786/115,090,224.94
  6. Step 6: Final answer
    x = 129,052,130.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.