Home / 153,456.51-211,780.63-93,029.70

Finding the Fourth Proportional to 153,456.51, 211,780.63 and 93,029.70

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Solution

The fourth proportional to 153,456.51, 211,780.63 and 93,029.70 is: 128,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,456.51 : 211,780.63 = 93,029.70 : x
  2. Step 2: Convert to fraction form
    153,456.51/211,780.63 = 93,029.70/x
  3. Step 3: Cross multiply
    153,456.51x = 211,780.63 × 93,029.70
  4. Step 4: Simplify right side
    153,456.51x = 19,701,888,474.71
  5. Step 5: Solve for x
    x = 19,701,888,474.71/153,456.51
  6. Step 6: Final answer
    x = 128,387.44

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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.