Home / 157,328.07-217,111.67-85,708.14

Finding the Fourth Proportional to 157,328.07, 217,111.67 and 85,708.14

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Solution

The fourth proportional to 157,328.07, 217,111.67 and 85,708.14 is: 118,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,328.07 : 217,111.67 = 85,708.14 : x
  2. Step 2: Convert to fraction form
    157,328.07/217,111.67 = 85,708.14/x
  3. Step 3: Cross multiply
    157,328.07x = 217,111.67 × 85,708.14
  4. Step 4: Simplify right side
    157,328.07x = 18,608,236,979.45
  5. Step 5: Solve for x
    x = 18,608,236,979.45/157,328.07
  6. Step 6: Final answer
    x = 118,276.65

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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.