Home / 153,356.55-211,626.86-86,275.59

Finding the Fourth Proportional to 153,356.55, 211,626.86 and 86,275.59

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Solution

The fourth proportional to 153,356.55, 211,626.86 and 86,275.59 is: 119,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,356.55 : 211,626.86 = 86,275.59 : x
  2. Step 2: Convert to fraction form
    153,356.55/211,626.86 = 86,275.59/x
  3. Step 3: Cross multiply
    153,356.55x = 211,626.86 × 86,275.59
  4. Step 4: Simplify right side
    153,356.55x = 18,258,231,774.97
  5. Step 5: Solve for x
    x = 18,258,231,774.97/153,356.55
  6. Step 6: Final answer
    x = 119,057.40

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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.