Home / 127,186.08-175,518-70,602.72

Finding the Fourth Proportional to 127,186.08, 175,518 and 70,602.72

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Solution

The fourth proportional to 127,186.08, 175,518 and 70,602.72 is: 97,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,186.08 : 175,518 = 70,602.72 : x
  2. Step 2: Convert to fraction form
    127,186.08/175,518 = 70,602.72/x
  3. Step 3: Cross multiply
    127,186.08x = 175,518 × 70,602.72
  4. Step 4: Simplify right side
    127,186.08x = 12,392,048,208.96
  5. Step 5: Solve for x
    x = 12,392,048,208.96/127,186.08
  6. Step 6: Final answer
    x = 97,432.43

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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.