Home / 153,787.24-212,265.06-86,758.12

Finding the Fourth Proportional to 153,787.24, 212,265.06 and 86,758.12

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Solution

The fourth proportional to 153,787.24, 212,265.06 and 86,758.12 is: 119,748.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,787.24 : 212,265.06 = 86,758.12 : x
  2. Step 2: Convert to fraction form
    153,787.24/212,265.06 = 86,758.12/x
  3. Step 3: Cross multiply
    153,787.24x = 212,265.06 × 86,758.12
  4. Step 4: Simplify right side
    153,787.24x = 18,415,717,547.29
  5. Step 5: Solve for x
    x = 18,415,717,547.29/153,787.24
  6. Step 6: Final answer
    x = 119,748.02

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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.