Home / 105,686.06-145,842.17-63,267.98

Finding the Fourth Proportional to 105,686.06, 145,842.17 and 63,267.98

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Solution

The fourth proportional to 105,686.06, 145,842.17 and 63,267.98 is: 87,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,686.06 : 145,842.17 = 63,267.98 : x
  2. Step 2: Convert to fraction form
    105,686.06/145,842.17 = 63,267.98/x
  3. Step 3: Cross multiply
    105,686.06x = 145,842.17 × 63,267.98
  4. Step 4: Simplify right side
    105,686.06x = 9,227,138,449.17
  5. Step 5: Solve for x
    x = 9,227,138,449.17/105,686.06
  6. Step 6: Final answer
    x = 87,307.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.