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Finding the Fourth Proportional to 94,957.48, 130,919.46 and 77,900.20

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Solution

The fourth proportional to 94,957.48, 130,919.46 and 77,900.20 is: 107,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,957.48 : 130,919.46 = 77,900.20 : x
  2. Step 2: Convert to fraction form
    94,957.48/130,919.46 = 77,900.20/x
  3. Step 3: Cross multiply
    94,957.48x = 130,919.46 × 77,900.20
  4. Step 4: Simplify right side
    94,957.48x = 10,198,652,117.89
  5. Step 5: Solve for x
    x = 10,198,652,117.89/94,957.48
  6. Step 6: Final answer
    x = 107,402.30

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1.5x scale

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.