Home / 180,553.12-249,164.51-99,985.86

Finding the Fourth Proportional to 180,553.12, 249,164.51 and 99,985.86

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Solution

The fourth proportional to 180,553.12, 249,164.51 and 99,985.86 is: 137,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,553.12 : 249,164.51 = 99,985.86 : x
  2. Step 2: Convert to fraction form
    180,553.12/249,164.51 = 99,985.86/x
  3. Step 3: Cross multiply
    180,553.12x = 249,164.51 × 99,985.86
  4. Step 4: Simplify right side
    180,553.12x = 24,912,927,313.90
  5. Step 5: Solve for x
    x = 24,912,927,313.90/180,553.12
  6. Step 6: Final answer
    x = 137,981.15

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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.