Home / 157,680.60-236,666.70-78,851.40

Finding the Fourth Proportional to 157,680.60, 236,666.70 and 78,851.40

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Solution

The fourth proportional to 157,680.60, 236,666.70 and 78,851.40 is: 118,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,680.60 : 236,666.70 = 78,851.40 : x
  2. Step 2: Convert to fraction form
    157,680.60/236,666.70 = 78,851.40/x
  3. Step 3: Cross multiply
    157,680.60x = 236,666.70 × 78,851.40
  4. Step 4: Simplify right side
    157,680.60x = 18,661,500,628.38
  5. Step 5: Solve for x
    x = 18,661,500,628.38/157,680.60
  6. Step 6: Final answer
    x = 118,350.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.