Home / 157,176.40-216,908.32-85,561.19

Finding the Fourth Proportional to 157,176.40, 216,908.32 and 85,561.19

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Solution

The fourth proportional to 157,176.40, 216,908.32 and 85,561.19 is: 118,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,176.40 : 216,908.32 = 85,561.19 : x
  2. Step 2: Convert to fraction form
    157,176.40/216,908.32 = 85,561.19/x
  3. Step 3: Cross multiply
    157,176.40x = 216,908.32 × 85,561.19
  4. Step 4: Simplify right side
    157,176.40x = 18,558,933,980.10
  5. Step 5: Solve for x
    x = 18,558,933,980.10/157,176.40
  6. Step 6: Final answer
    x = 118,077.10

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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.