Home / 142,073.63-196,062.02-77,543.46

Finding the Fourth Proportional to 142,073.63, 196,062.02 and 77,543.46

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Solution

The fourth proportional to 142,073.63, 196,062.02 and 77,543.46 is: 107,010.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,073.63 : 196,062.02 = 77,543.46 : x
  2. Step 2: Convert to fraction form
    142,073.63/196,062.02 = 77,543.46/x
  3. Step 3: Cross multiply
    142,073.63x = 196,062.02 × 77,543.46
  4. Step 4: Simplify right side
    142,073.63x = 15,203,327,599.25
  5. Step 5: Solve for x
    x = 15,203,327,599.25/142,073.63
  6. Step 6: Final answer
    x = 107,010.20

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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.