Home / 127,078.71-175,389.65-70,508.31

Finding the Fourth Proportional to 127,078.71, 175,389.65 and 70,508.31

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Solution

The fourth proportional to 127,078.71, 175,389.65 and 70,508.31 is: 97,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,078.71 : 175,389.65 = 70,508.31 : x
  2. Step 2: Convert to fraction form
    127,078.71/175,389.65 = 70,508.31/x
  3. Step 3: Cross multiply
    127,078.71x = 175,389.65 × 70,508.31
  4. Step 4: Simplify right side
    127,078.71x = 12,366,427,460.45
  5. Step 5: Solve for x
    x = 12,366,427,460.45/127,078.71
  6. Step 6: Final answer
    x = 97,313.13

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1.5x scale

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.