Home / 115,293.78-159,044.90-93,807.55

Finding the Fourth Proportional to 115,293.78, 159,044.90 and 93,807.55

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Solution

The fourth proportional to 115,293.78, 159,044.90 and 93,807.55 is: 129,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,293.78 : 159,044.90 = 93,807.55 : x
  2. Step 2: Convert to fraction form
    115,293.78/159,044.90 = 93,807.55/x
  3. Step 3: Cross multiply
    115,293.78x = 159,044.90 × 93,807.55
  4. Step 4: Simplify right side
    115,293.78x = 14,919,612,643.51
  5. Step 5: Solve for x
    x = 14,919,612,643.51/115,293.78
  6. Step 6: Final answer
    x = 129,405.19

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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.