Home / 127,078.35-175,389.15-70,507.95

Finding the Fourth Proportional to 127,078.35, 175,389.15 and 70,507.95

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Solution

The fourth proportional to 127,078.35, 175,389.15 and 70,507.95 is: 97,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,078.35 : 175,389.15 = 70,507.95 : x
  2. Step 2: Convert to fraction form
    127,078.35/175,389.15 = 70,507.95/x
  3. Step 3: Cross multiply
    127,078.35x = 175,389.15 × 70,507.95
  4. Step 4: Simplify right side
    127,078.35x = 12,366,329,418.74
  5. Step 5: Solve for x
    x = 12,366,329,418.74/127,078.35
  6. Step 6: Final answer
    x = 97,312.64

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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.