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Finding the Fourth Proportional to 93,152.60, 139,728.90 and 89,070.20

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Solution

The fourth proportional to 93,152.60, 139,728.90 and 89,070.20 is: 133,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,152.60 : 139,728.90 = 89,070.20 : x
  2. Step 2: Convert to fraction form
    93,152.60/139,728.90 = 89,070.20/x
  3. Step 3: Cross multiply
    93,152.60x = 139,728.90 × 89,070.20
  4. Step 4: Simplify right side
    93,152.60x = 12,445,681,068.78
  5. Step 5: Solve for x
    x = 12,445,681,068.78/93,152.60
  6. Step 6: Final answer
    x = 133,605.30

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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.