Home / 152,961.90-211,090.10-84,985.08

Finding the Fourth Proportional to 152,961.90, 211,090.10 and 84,985.08

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Solution

The fourth proportional to 152,961.90, 211,090.10 and 84,985.08 is: 117,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,961.90 : 211,090.10 = 84,985.08 : x
  2. Step 2: Convert to fraction form
    152,961.90/211,090.10 = 84,985.08/x
  3. Step 3: Cross multiply
    152,961.90x = 211,090.10 × 84,985.08
  4. Step 4: Simplify right side
    152,961.90x = 17,939,509,035.71
  5. Step 5: Solve for x
    x = 17,939,509,035.71/152,961.90
  6. Step 6: Final answer
    x = 117,280.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.