Home / 123,448.63-170,358.58-69,000.72

Finding the Fourth Proportional to 123,448.63, 170,358.58 and 69,000.72

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Solution

The fourth proportional to 123,448.63, 170,358.58 and 69,000.72 is: 95,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,448.63 : 170,358.58 = 69,000.72 : x
  2. Step 2: Convert to fraction form
    123,448.63/170,358.58 = 69,000.72/x
  3. Step 3: Cross multiply
    123,448.63x = 170,358.58 × 69,000.72
  4. Step 4: Simplify right side
    123,448.63x = 11,754,864,931.57
  5. Step 5: Solve for x
    x = 11,754,864,931.57/123,448.63
  6. Step 6: Final answer
    x = 95,220.70

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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.