Home / 144,038.22-198,772.75-79,507.47

Finding the Fourth Proportional to 144,038.22, 198,772.75 and 79,507.47

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Solution

The fourth proportional to 144,038.22, 198,772.75 and 79,507.47 is: 109,720.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,038.22 : 198,772.75 = 79,507.47 : x
  2. Step 2: Convert to fraction form
    144,038.22/198,772.75 = 79,507.47/x
  3. Step 3: Cross multiply
    144,038.22x = 198,772.75 × 79,507.47
  4. Step 4: Simplify right side
    144,038.22x = 15,803,918,258.67
  5. Step 5: Solve for x
    x = 15,803,918,258.67/144,038.22
  6. Step 6: Final answer
    x = 109,720.31

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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.