Home / 93,031.20-139,546.80-89,402.40

Finding the Fourth Proportional to 93,031.20, 139,546.80 and 89,402.40

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Solution

The fourth proportional to 93,031.20, 139,546.80 and 89,402.40 is: 134,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.20 : 139,546.80 = 89,402.40 : x
  2. Step 2: Convert to fraction form
    93,031.20/139,546.80 = 89,402.40/x
  3. Step 3: Cross multiply
    93,031.20x = 139,546.80 × 89,402.40
  4. Step 4: Simplify right side
    93,031.20x = 12,475,818,832.32
  5. Step 5: Solve for x
    x = 12,475,818,832.32/93,031.20
  6. Step 6: Final answer
    x = 134,103.60

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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.