Home / 144,542.12-216,655.02-74,425.64

Finding the Fourth Proportional to 144,542.12, 216,655.02 and 74,425.64

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Solution

The fourth proportional to 144,542.12, 216,655.02 and 74,425.64 is: 111,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,542.12 : 216,655.02 = 74,425.64 : x
  2. Step 2: Convert to fraction form
    144,542.12/216,655.02 = 74,425.64/x
  3. Step 3: Cross multiply
    144,542.12x = 216,655.02 × 74,425.64
  4. Step 4: Simplify right side
    144,542.12x = 16,124,688,522.71
  5. Step 5: Solve for x
    x = 16,124,688,522.71/144,542.12
  6. Step 6: Final answer
    x = 111,557.02

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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.