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Finding the Fourth Proportional to 96,117.80, 144,003.90 and 78,492.20

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Solution

The fourth proportional to 96,117.80, 144,003.90 and 78,492.20 is: 117,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,117.80 : 144,003.90 = 78,492.20 : x
  2. Step 2: Convert to fraction form
    96,117.80/144,003.90 = 78,492.20/x
  3. Step 3: Cross multiply
    96,117.80x = 144,003.90 × 78,492.20
  4. Step 4: Simplify right side
    96,117.80x = 11,303,182,919.58
  5. Step 5: Solve for x
    x = 11,303,182,919.58/96,117.80
  6. Step 6: Final answer
    x = 117,597.19

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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.