Home / 142,618.48-196,751.70-85,998.40

Finding the Fourth Proportional to 142,618.48, 196,751.70 and 85,998.40

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Solution

The fourth proportional to 142,618.48, 196,751.70 and 85,998.40 is: 118,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,618.48 : 196,751.70 = 85,998.40 : x
  2. Step 2: Convert to fraction form
    142,618.48/196,751.70 = 85,998.40/x
  3. Step 3: Cross multiply
    142,618.48x = 196,751.70 × 85,998.40
  4. Step 4: Simplify right side
    142,618.48x = 16,920,331,397.28
  5. Step 5: Solve for x
    x = 16,920,331,397.28/142,618.48
  6. Step 6: Final answer
    x = 118,640.53

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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.