Home / 135,117.08-186,458.29-74,686.17

Finding the Fourth Proportional to 135,117.08, 186,458.29 and 74,686.17

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Solution

The fourth proportional to 135,117.08, 186,458.29 and 74,686.17 is: 103,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,117.08 : 186,458.29 = 74,686.17 : x
  2. Step 2: Convert to fraction form
    135,117.08/186,458.29 = 74,686.17/x
  3. Step 3: Cross multiply
    135,117.08x = 186,458.29 × 74,686.17
  4. Step 4: Simplify right side
    135,117.08x = 13,925,856,477.46
  5. Step 5: Solve for x
    x = 13,925,856,477.46/135,117.08
  6. Step 6: Final answer
    x = 103,065.10

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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.