Home / 127,689.36-176,209.66-70,327.58

Finding the Fourth Proportional to 127,689.36, 176,209.66 and 70,327.58

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Solution

The fourth proportional to 127,689.36, 176,209.66 and 70,327.58 is: 97,051.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,689.36 : 176,209.66 = 70,327.58 : x
  2. Step 2: Convert to fraction form
    127,689.36/176,209.66 = 70,327.58/x
  3. Step 3: Cross multiply
    127,689.36x = 176,209.66 × 70,327.58
  4. Step 4: Simplify right side
    127,689.36x = 12,392,398,960.42
  5. Step 5: Solve for x
    x = 12,392,398,960.42/127,689.36
  6. Step 6: Final answer
    x = 97,051.15

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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.