Home / 126,870.81-175,092.39-70,287.45

Finding the Fourth Proportional to 126,870.81, 175,092.39 and 70,287.45

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Solution

The fourth proportional to 126,870.81, 175,092.39 and 70,287.45 is: 97,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,870.81 : 175,092.39 = 70,287.45 : x
  2. Step 2: Convert to fraction form
    126,870.81/175,092.39 = 70,287.45/x
  3. Step 3: Cross multiply
    126,870.81x = 175,092.39 × 70,287.45
  4. Step 4: Simplify right side
    126,870.81x = 12,306,797,607.51
  5. Step 5: Solve for x
    x = 12,306,797,607.51/126,870.81
  6. Step 6: Final answer
    x = 97,002.59

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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.