Home / 142,887.60-197,148.60-89,168.40

Finding the Fourth Proportional to 142,887.60, 197,148.60 and 89,168.40

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Solution

The fourth proportional to 142,887.60, 197,148.60 and 89,168.40 is: 123,029.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,887.60 : 197,148.60 = 89,168.40 : x
  2. Step 2: Convert to fraction form
    142,887.60/197,148.60 = 89,168.40/x
  3. Step 3: Cross multiply
    142,887.60x = 197,148.60 × 89,168.40
  4. Step 4: Simplify right side
    142,887.60x = 17,579,425,224.24
  5. Step 5: Solve for x
    x = 17,579,425,224.24/142,887.60
  6. Step 6: Final answer
    x = 123,029.75

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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.