Home / 153,012.38-211,182.12-127,478.25

Finding the Fourth Proportional to 153,012.38, 211,182.12 and 127,478.25

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Solution

The fourth proportional to 153,012.38, 211,182.12 and 127,478.25 is: 175,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,012.38 : 211,182.12 = 127,478.25 : x
  2. Step 2: Convert to fraction form
    153,012.38/211,182.12 = 127,478.25/x
  3. Step 3: Cross multiply
    153,012.38x = 211,182.12 × 127,478.25
  4. Step 4: Simplify right side
    153,012.38x = 26,921,127,088.89
  5. Step 5: Solve for x
    x = 26,921,127,088.89/153,012.38
  6. Step 6: Final answer
    x = 175,940.85

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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.