Home / 157,426.60-236,139.90-86,567.80

Finding the Fourth Proportional to 157,426.60, 236,139.90 and 86,567.80

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Solution

The fourth proportional to 157,426.60, 236,139.90 and 86,567.80 is: 129,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,426.60 : 236,139.90 = 86,567.80 : x
  2. Step 2: Convert to fraction form
    157,426.60/236,139.90 = 86,567.80/x
  3. Step 3: Cross multiply
    157,426.60x = 236,139.90 × 86,567.80
  4. Step 4: Simplify right side
    157,426.60x = 20,442,111,635.22
  5. Step 5: Solve for x
    x = 20,442,111,635.22/157,426.60
  6. Step 6: Final answer
    x = 129,851.70

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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.