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Finding the Fourth Proportional to 134,874.70, 202,312.05 and 72,666.70

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Solution

The fourth proportional to 134,874.70, 202,312.05 and 72,666.70 is: 109,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,874.70 : 202,312.05 = 72,666.70 : x
  2. Step 2: Convert to fraction form
    134,874.70/202,312.05 = 72,666.70/x
  3. Step 3: Cross multiply
    134,874.70x = 202,312.05 × 72,666.70
  4. Step 4: Simplify right side
    134,874.70x = 14,701,349,043.74
  5. Step 5: Solve for x
    x = 14,701,349,043.74/134,874.70
  6. Step 6: Final answer
    x = 109,000.05

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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.