Home / 258,130.06-387,136.69-98,148.93

Finding the Fourth Proportional to 258,130.06, 387,136.69 and 98,148.93

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Solution

The fourth proportional to 258,130.06, 387,136.69 and 98,148.93 is: 147,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,130.06 : 387,136.69 = 98,148.93 : x
  2. Step 2: Convert to fraction form
    258,130.06/387,136.69 = 98,148.93/x
  3. Step 3: Cross multiply
    258,130.06x = 387,136.69 × 98,148.93
  4. Step 4: Simplify right side
    258,130.06x = 37,997,051,887.24
  5. Step 5: Solve for x
    x = 37,997,051,887.24/258,130.06
  6. Step 6: Final answer
    x = 147,201.19

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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.