Home / 157,917.28-217,928.70-86,300.32

Finding the Fourth Proportional to 157,917.28, 217,928.70 and 86,300.32

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Solution

The fourth proportional to 157,917.28, 217,928.70 and 86,300.32 is: 119,096.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,917.28 : 217,928.70 = 86,300.32 : x
  2. Step 2: Convert to fraction form
    157,917.28/217,928.70 = 86,300.32/x
  3. Step 3: Cross multiply
    157,917.28x = 217,928.70 × 86,300.32
  4. Step 4: Simplify right side
    157,917.28x = 18,807,316,547.18
  5. Step 5: Solve for x
    x = 18,807,316,547.18/157,917.28
  6. Step 6: Final answer
    x = 119,096.00

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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.