Home / 126,958.40-175,212.96-70,386.56

Finding the Fourth Proportional to 126,958.40, 175,212.96 and 70,386.56

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Solution

The fourth proportional to 126,958.40, 175,212.96 and 70,386.56 is: 97,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,958.40 : 175,212.96 = 70,386.56 : x
  2. Step 2: Convert to fraction form
    126,958.40/175,212.96 = 70,386.56/x
  3. Step 3: Cross multiply
    126,958.40x = 175,212.96 × 70,386.56
  4. Step 4: Simplify right side
    126,958.40x = 12,332,637,521.82
  5. Step 5: Solve for x
    x = 12,332,637,521.82/126,958.40
  6. Step 6: Final answer
    x = 97,139.20

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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.