Home / 212,045.68-292,505.61-134,379.10

Finding the Fourth Proportional to 212,045.68, 292,505.61 and 134,379.10

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Solution

The fourth proportional to 212,045.68, 292,505.61 and 134,379.10 is: 185,368.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,045.68 : 292,505.61 = 134,379.10 : x
  2. Step 2: Convert to fraction form
    212,045.68/292,505.61 = 134,379.10/x
  3. Step 3: Cross multiply
    212,045.68x = 292,505.61 × 134,379.10
  4. Step 4: Simplify right side
    212,045.68x = 39,306,640,616.75
  5. Step 5: Solve for x
    x = 39,306,640,616.75/212,045.68
  6. Step 6: Final answer
    x = 185,368.74

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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.