Home / 135,151.13-186,307.80-115,938.34

Finding the Fourth Proportional to 135,151.13, 186,307.80 and 115,938.34

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Solution

The fourth proportional to 135,151.13, 186,307.80 and 115,938.34 is: 159,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,151.13 : 186,307.80 = 115,938.34 : x
  2. Step 2: Convert to fraction form
    135,151.13/186,307.80 = 115,938.34/x
  3. Step 3: Cross multiply
    135,151.13x = 186,307.80 × 115,938.34
  4. Step 4: Simplify right side
    135,151.13x = 21,600,216,160.51
  5. Step 5: Solve for x
    x = 21,600,216,160.51/135,151.13
  6. Step 6: Final answer
    x = 159,822.68

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1.5x scale

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.