Home / 127,227.62-175,579.60-70,639

Finding the Fourth Proportional to 127,227.62, 175,579.60 and 70,639

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Solution

The fourth proportional to 127,227.62, 175,579.60 and 70,639 is: 97,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,227.62 : 175,579.60 = 70,639 : x
  2. Step 2: Convert to fraction form
    127,227.62/175,579.60 = 70,639/x
  3. Step 3: Cross multiply
    127,227.62x = 175,579.60 × 70,639
  4. Step 4: Simplify right side
    127,227.62x = 12,402,767,364.40
  5. Step 5: Solve for x
    x = 12,402,767,364.40/127,227.62
  6. Step 6: Final answer
    x = 97,484.87

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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.