Home / 131,018.04-180,805.50-74,432.52

Finding the Fourth Proportional to 131,018.04, 180,805.50 and 74,432.52

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Solution

The fourth proportional to 131,018.04, 180,805.50 and 74,432.52 is: 102,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,018.04 : 180,805.50 = 74,432.52 : x
  2. Step 2: Convert to fraction form
    131,018.04/180,805.50 = 74,432.52/x
  3. Step 3: Cross multiply
    131,018.04x = 180,805.50 × 74,432.52
  4. Step 4: Simplify right side
    131,018.04x = 13,457,808,994.86
  5. Step 5: Solve for x
    x = 13,457,808,994.86/131,018.04
  6. Step 6: Final answer
    x = 102,717.22

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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.