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Finding the Fourth Proportional to 134,885.70, 202,328.55 and 71,900.10

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Solution

The fourth proportional to 134,885.70, 202,328.55 and 71,900.10 is: 107,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,885.70 : 202,328.55 = 71,900.10 : x
  2. Step 2: Convert to fraction form
    134,885.70/202,328.55 = 71,900.10/x
  3. Step 3: Cross multiply
    134,885.70x = 202,328.55 × 71,900.10
  4. Step 4: Simplify right side
    134,885.70x = 14,547,442,977.86
  5. Step 5: Solve for x
    x = 14,547,442,977.86/134,885.70
  6. Step 6: Final answer
    x = 107,850.15

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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.