Home / 138,412.51-207,641.13-58,462.50

Finding the Fourth Proportional to 138,412.51, 207,641.13 and 58,462.50

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Solution

The fourth proportional to 138,412.51, 207,641.13 and 58,462.50 is: 87,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,412.51 : 207,641.13 = 58,462.50 : x
  2. Step 2: Convert to fraction form
    138,412.51/207,641.13 = 58,462.50/x
  3. Step 3: Cross multiply
    138,412.51x = 207,641.13 × 58,462.50
  4. Step 4: Simplify right side
    138,412.51x = 12,139,219,562.63
  5. Step 5: Solve for x
    x = 12,139,219,562.63/138,412.51
  6. Step 6: Final answer
    x = 87,703.20

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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.