Home / 157,826.64-217,798.40-86,205.20

Finding the Fourth Proportional to 157,826.64, 217,798.40 and 86,205.20

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Solution

The fourth proportional to 157,826.64, 217,798.40 and 86,205.20 is: 118,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,826.64 : 217,798.40 = 86,205.20 : x
  2. Step 2: Convert to fraction form
    157,826.64/217,798.40 = 86,205.20/x
  3. Step 3: Cross multiply
    157,826.64x = 217,798.40 × 86,205.20
  4. Step 4: Simplify right side
    157,826.64x = 18,775,354,631.68
  5. Step 5: Solve for x
    x = 18,775,354,631.68/157,826.64
  6. Step 6: Final answer
    x = 118,961.89

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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.