Home / 112,585.39-155,346.26-64,186.40

Finding the Fourth Proportional to 112,585.39, 155,346.26 and 64,186.40

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Solution

The fourth proportional to 112,585.39, 155,346.26 and 64,186.40 is: 88,564.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,585.39 : 155,346.26 = 64,186.40 : x
  2. Step 2: Convert to fraction form
    112,585.39/155,346.26 = 64,186.40/x
  3. Step 3: Cross multiply
    112,585.39x = 155,346.26 × 64,186.40
  4. Step 4: Simplify right side
    112,585.39x = 9,971,116,813.39
  5. Step 5: Solve for x
    x = 9,971,116,813.39/112,585.39
  6. Step 6: Final answer
    x = 88,564.92

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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.