Home / 142,426.49-196,543.40-77,893.52

Finding the Fourth Proportional to 142,426.49, 196,543.40 and 77,893.52

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Solution

The fourth proportional to 142,426.49, 196,543.40 and 77,893.52 is: 107,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,426.49 : 196,543.40 = 77,893.52 : x
  2. Step 2: Convert to fraction form
    142,426.49/196,543.40 = 77,893.52/x
  3. Step 3: Cross multiply
    142,426.49x = 196,543.40 × 77,893.52
  4. Step 4: Simplify right side
    142,426.49x = 15,309,455,886.58
  5. Step 5: Solve for x
    x = 15,309,455,886.58/142,426.49
  6. Step 6: Final answer
    x = 107,490.23

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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.