Home / 105,020.40-157,554.10-38,459.20

Finding the Fourth Proportional to 105,020.40, 157,554.10 and 38,459.20

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Solution

The fourth proportional to 105,020.40, 157,554.10 and 38,459.20 is: 57,697.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,020.40 : 157,554.10 = 38,459.20 : x
  2. Step 2: Convert to fraction form
    105,020.40/157,554.10 = 38,459.20/x
  3. Step 3: Cross multiply
    105,020.40x = 157,554.10 × 38,459.20
  4. Step 4: Simplify right side
    105,020.40x = 6,059,404,642.72
  5. Step 5: Solve for x
    x = 6,059,404,642.72/105,020.40
  6. Step 6: Final answer
    x = 57,697.41

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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.