Home / 158,823.19-219,175.36-90,840.06

Finding the Fourth Proportional to 158,823.19, 219,175.36 and 90,840.06

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Solution

The fourth proportional to 158,823.19, 219,175.36 and 90,840.06 is: 125,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,823.19 : 219,175.36 = 90,840.06 : x
  2. Step 2: Convert to fraction form
    158,823.19/219,175.36 = 90,840.06/x
  3. Step 3: Cross multiply
    158,823.19x = 219,175.36 × 90,840.06
  4. Step 4: Simplify right side
    158,823.19x = 19,909,903,614.34
  5. Step 5: Solve for x
    x = 19,909,903,614.34/158,823.19
  6. Step 6: Final answer
    x = 125,358.92

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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.