Home / 153,456.40-211,780.47-93,029.59

Finding the Fourth Proportional to 153,456.40, 211,780.47 and 93,029.59

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Solution

The fourth proportional to 153,456.40, 211,780.47 and 93,029.59 is: 128,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,456.40 : 211,780.47 = 93,029.59 : x
  2. Step 2: Convert to fraction form
    153,456.40/211,780.47 = 93,029.59/x
  3. Step 3: Cross multiply
    153,456.40x = 211,780.47 × 93,029.59
  4. Step 4: Simplify right side
    153,456.40x = 19,701,850,294.11
  5. Step 5: Solve for x
    x = 19,701,850,294.11/153,456.40
  6. Step 6: Final answer
    x = 128,387.28

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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.