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Finding the Fourth Proportional to 92,401.60, 138,602.40 and 65,963.20

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Solution

The fourth proportional to 92,401.60, 138,602.40 and 65,963.20 is: 98,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,401.60 : 138,602.40 = 65,963.20 : x
  2. Step 2: Convert to fraction form
    92,401.60/138,602.40 = 65,963.20/x
  3. Step 3: Cross multiply
    92,401.60x = 138,602.40 × 65,963.20
  4. Step 4: Simplify right side
    92,401.60x = 9,142,657,831.68
  5. Step 5: Solve for x
    x = 9,142,657,831.68/92,401.60
  6. Step 6: Final answer
    x = 98,944.80

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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.