Home / 99,345.40-148,966.80-29,215.60

Finding the Fourth Proportional to 99,345.40, 148,966.80 and 29,215.60

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Solution

The fourth proportional to 99,345.40, 148,966.80 and 29,215.60 is: 43,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,345.40 : 148,966.80 = 29,215.60 : x
  2. Step 2: Convert to fraction form
    99,345.40/148,966.80 = 29,215.60/x
  3. Step 3: Cross multiply
    99,345.40x = 148,966.80 × 29,215.60
  4. Step 4: Simplify right side
    99,345.40x = 4,352,154,442.08
  5. Step 5: Solve for x
    x = 4,352,154,442.08/99,345.40
  6. Step 6: Final answer
    x = 43,808.31

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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.