Home / 142,330.13-196,412.15-77,796.46

Finding the Fourth Proportional to 142,330.13, 196,412.15 and 77,796.46

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Solution

The fourth proportional to 142,330.13, 196,412.15 and 77,796.46 is: 107,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,330.13 : 196,412.15 = 77,796.46 : x
  2. Step 2: Convert to fraction form
    142,330.13/196,412.15 = 77,796.46/x
  3. Step 3: Cross multiply
    142,330.13x = 196,412.15 × 77,796.46
  4. Step 4: Simplify right side
    142,330.13x = 15,280,170,411.00
  5. Step 5: Solve for x
    x = 15,280,170,411.00/142,330.13
  6. Step 6: Final answer
    x = 107,357.24

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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.