Home / 120,740.10-180,937.35-88,901.70

Finding the Fourth Proportional to 120,740.10, 180,937.35 and 88,901.70

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Solution

The fourth proportional to 120,740.10, 180,937.35 and 88,901.70 is: 133,225.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,740.10 : 180,937.35 = 88,901.70 : x
  2. Step 2: Convert to fraction form
    120,740.10/180,937.35 = 88,901.70/x
  3. Step 3: Cross multiply
    120,740.10x = 180,937.35 × 88,901.70
  4. Step 4: Simplify right side
    120,740.10x = 16,085,638,008.50
  5. Step 5: Solve for x
    x = 16,085,638,008.50/120,740.10
  6. Step 6: Final answer
    x = 133,225.32

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1.5x scale

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.