Home / 142,006.10-213,009.15-42,181.70

Finding the Fourth Proportional to 142,006.10, 213,009.15 and 42,181.70

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Solution

The fourth proportional to 142,006.10, 213,009.15 and 42,181.70 is: 63,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,006.10 : 213,009.15 = 42,181.70 : x
  2. Step 2: Convert to fraction form
    142,006.10/213,009.15 = 42,181.70/x
  3. Step 3: Cross multiply
    142,006.10x = 213,009.15 × 42,181.70
  4. Step 4: Simplify right side
    142,006.10x = 8,985,088,062.56
  5. Step 5: Solve for x
    x = 8,985,088,062.56/142,006.10
  6. Step 6: Final answer
    x = 63,272.55

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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.