Home / 142,935.04-197,259.84-79,275.52

Finding the Fourth Proportional to 142,935.04, 197,259.84 and 79,275.52

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Solution

The fourth proportional to 142,935.04, 197,259.84 and 79,275.52 is: 109,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,935.04 : 197,259.84 = 79,275.52 : x
  2. Step 2: Convert to fraction form
    142,935.04/197,259.84 = 79,275.52/x
  3. Step 3: Cross multiply
    142,935.04x = 197,259.84 × 79,275.52
  4. Step 4: Simplify right side
    142,935.04x = 15,637,876,391.12
  5. Step 5: Solve for x
    x = 15,637,876,391.12/142,935.04
  6. Step 6: Final answer
    x = 109,405.48

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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.