Home / 100,507.04-138,764.62-62,307.42

Finding the Fourth Proportional to 100,507.04, 138,764.62 and 62,307.42

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Solution

The fourth proportional to 100,507.04, 138,764.62 and 62,307.42 is: 86,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,507.04 : 138,764.62 = 62,307.42 : x
  2. Step 2: Convert to fraction form
    100,507.04/138,764.62 = 62,307.42/x
  3. Step 3: Cross multiply
    100,507.04x = 138,764.62 × 62,307.42
  4. Step 4: Simplify right side
    100,507.04x = 8,646,065,017.00
  5. Step 5: Solve for x
    x = 8,646,065,017.00/100,507.04
  6. Step 6: Final answer
    x = 86,024.47

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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.