Home / 112,570.51-155,332.08-64,178.68

Finding the Fourth Proportional to 112,570.51, 155,332.08 and 64,178.68

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Solution

The fourth proportional to 112,570.51, 155,332.08 and 64,178.68 is: 88,557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,570.51 : 155,332.08 = 64,178.68 : x
  2. Step 2: Convert to fraction form
    112,570.51/155,332.08 = 64,178.68/x
  3. Step 3: Cross multiply
    112,570.51x = 155,332.08 × 64,178.68
  4. Step 4: Simplify right side
    112,570.51x = 9,969,006,758.50
  5. Step 5: Solve for x
    x = 9,969,006,758.50/112,570.51
  6. Step 6: Final answer
    x = 88,557.89

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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.