Home / 127,145.40-175,461.70-70,557.72

Finding the Fourth Proportional to 127,145.40, 175,461.70 and 70,557.72

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Solution

The fourth proportional to 127,145.40, 175,461.70 and 70,557.72 is: 97,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,145.40 : 175,461.70 = 70,557.72 : x
  2. Step 2: Convert to fraction form
    127,145.40/175,461.70 = 70,557.72/x
  3. Step 3: Cross multiply
    127,145.40x = 175,461.70 × 70,557.72
  4. Step 4: Simplify right side
    127,145.40x = 12,380,177,499.32
  5. Step 5: Solve for x
    x = 12,380,177,499.32/127,145.40
  6. Step 6: Final answer
    x = 97,370.24

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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.