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Finding the Fourth Proportional to 96,307.20, 144,417.60 and 43,689.60

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Solution

The fourth proportional to 96,307.20, 144,417.60 and 43,689.60 is: 65,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,307.20 : 144,417.60 = 43,689.60 : x
  2. Step 2: Convert to fraction form
    96,307.20/144,417.60 = 43,689.60/x
  3. Step 3: Cross multiply
    96,307.20x = 144,417.60 × 43,689.60
  4. Step 4: Simplify right side
    96,307.20x = 6,309,547,176.96
  5. Step 5: Solve for x
    x = 6,309,547,176.96/96,307.20
  6. Step 6: Final answer
    x = 65,514.80

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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.