Home / 153,673.20-212,070.06-85,694.40

Finding the Fourth Proportional to 153,673.20, 212,070.06 and 85,694.40

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Solution

The fourth proportional to 153,673.20, 212,070.06 and 85,694.40 is: 118,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,673.20 : 212,070.06 = 85,694.40 : x
  2. Step 2: Convert to fraction form
    153,673.20/212,070.06 = 85,694.40/x
  3. Step 3: Cross multiply
    153,673.20x = 212,070.06 × 85,694.40
  4. Step 4: Simplify right side
    153,673.20x = 18,173,216,549.66
  5. Step 5: Solve for x
    x = 18,173,216,549.66/153,673.20
  6. Step 6: Final answer
    x = 118,258.85

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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.