Home / 112,318.64-168,332.52-45,681.36

Finding the Fourth Proportional to 112,318.64, 168,332.52 and 45,681.36

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Solution

The fourth proportional to 112,318.64, 168,332.52 and 45,681.36 is: 68,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.64 : 168,332.52 = 45,681.36 : x
  2. Step 2: Convert to fraction form
    112,318.64/168,332.52 = 45,681.36/x
  3. Step 3: Cross multiply
    112,318.64x = 168,332.52 × 45,681.36
  4. Step 4: Simplify right side
    112,318.64x = 7,689,658,445.83
  5. Step 5: Solve for x
    x = 7,689,658,445.83/112,318.64
  6. Step 6: Final answer
    x = 68,462.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.