Home / 142,240.77-196,275.53-78,574.77

Finding the Fourth Proportional to 142,240.77, 196,275.53 and 78,574.77

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Solution

The fourth proportional to 142,240.77, 196,275.53 and 78,574.77 is: 108,423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,240.77 : 196,275.53 = 78,574.77 : x
  2. Step 2: Convert to fraction form
    142,240.77/196,275.53 = 78,574.77/x
  3. Step 3: Cross multiply
    142,240.77x = 196,275.53 × 78,574.77
  4. Step 4: Simplify right side
    142,240.77x = 15,422,304,233.50
  5. Step 5: Solve for x
    x = 15,422,304,233.50/142,240.77
  6. Step 6: Final answer
    x = 108,423.94

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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.