Home / 136,681.48-188,452.86-112,397.58

Finding the Fourth Proportional to 136,681.48, 188,452.86 and 112,397.58

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Solution

The fourth proportional to 136,681.48, 188,452.86 and 112,397.58 is: 154,970.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,681.48 : 188,452.86 = 112,397.58 : x
  2. Step 2: Convert to fraction form
    136,681.48/188,452.86 = 112,397.58/x
  3. Step 3: Cross multiply
    136,681.48x = 188,452.86 × 112,397.58
  4. Step 4: Simplify right side
    136,681.48x = 21,181,644,465.81
  5. Step 5: Solve for x
    x = 21,181,644,465.81/136,681.48
  6. Step 6: Final answer
    x = 154,970.85

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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.