Home / 98,130.72-147,159.60-38,948.64

Finding the Fourth Proportional to 98,130.72, 147,159.60 and 38,948.64

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Solution

The fourth proportional to 98,130.72, 147,159.60 and 38,948.64 is: 58,408.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,130.72 : 147,159.60 = 38,948.64 : x
  2. Step 2: Convert to fraction form
    98,130.72/147,159.60 = 38,948.64/x
  3. Step 3: Cross multiply
    98,130.72x = 147,159.60 × 38,948.64
  4. Step 4: Simplify right side
    98,130.72x = 5,731,666,282.94
  5. Step 5: Solve for x
    x = 5,731,666,282.94/98,130.72
  6. Step 6: Final answer
    x = 58,408.48

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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.