Home / 103,392.65-142,681.30-58,071.33

Finding the Fourth Proportional to 103,392.65, 142,681.30 and 58,071.33

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Solution

The fourth proportional to 103,392.65, 142,681.30 and 58,071.33 is: 80,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,392.65 : 142,681.30 = 58,071.33 : x
  2. Step 2: Convert to fraction form
    103,392.65/142,681.30 = 58,071.33/x
  3. Step 3: Cross multiply
    103,392.65x = 142,681.30 × 58,071.33
  4. Step 4: Simplify right side
    103,392.65x = 8,285,692,711.95
  5. Step 5: Solve for x
    x = 8,285,692,711.95/103,392.65
  6. Step 6: Final answer
    x = 80,138.12

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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.