Home / 138,315.23-207,349.76-54,056.24

Finding the Fourth Proportional to 138,315.23, 207,349.76 and 54,056.24

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Solution

The fourth proportional to 138,315.23, 207,349.76 and 54,056.24 is: 81,036.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,315.23 : 207,349.76 = 54,056.24 : x
  2. Step 2: Convert to fraction form
    138,315.23/207,349.76 = 54,056.24/x
  3. Step 3: Cross multiply
    138,315.23x = 207,349.76 × 54,056.24
  4. Step 4: Simplify right side
    138,315.23x = 11,208,547,488.89
  5. Step 5: Solve for x
    x = 11,208,547,488.89/138,315.23
  6. Step 6: Final answer
    x = 81,036.25

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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.