Home / 103,543.01-142,886.13-58,222.90

Finding the Fourth Proportional to 103,543.01, 142,886.13 and 58,222.90

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Solution

The fourth proportional to 103,543.01, 142,886.13 and 58,222.90 is: 80,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,543.01 : 142,886.13 = 58,222.90 : x
  2. Step 2: Convert to fraction form
    103,543.01/142,886.13 = 58,222.90/x
  3. Step 3: Cross multiply
    103,543.01x = 142,886.13 × 58,222.90
  4. Step 4: Simplify right side
    103,543.01x = 8,319,244,818.65
  5. Step 5: Solve for x
    x = 8,319,244,818.65/103,543.01
  6. Step 6: Final answer
    x = 80,345.79

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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.