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Finding the Fourth Proportional to 113,423.04, 156,275.04 and 84,621.12

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Solution

The fourth proportional to 113,423.04, 156,275.04 and 84,621.12 is: 116,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,423.04 : 156,275.04 = 84,621.12 : x
  2. Step 2: Convert to fraction form
    113,423.04/156,275.04 = 84,621.12/x
  3. Step 3: Cross multiply
    113,423.04x = 156,275.04 × 84,621.12
  4. Step 4: Simplify right side
    113,423.04x = 13,224,168,912.84
  5. Step 5: Solve for x
    x = 13,224,168,912.84/113,423.04
  6. Step 6: Final answer
    x = 116,591.56

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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.