Home / 153,364.28-211,638.59-85,381.26

Finding the Fourth Proportional to 153,364.28, 211,638.59 and 85,381.26

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Solution

The fourth proportional to 153,364.28, 211,638.59 and 85,381.26 is: 117,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,364.28 : 211,638.59 = 85,381.26 : x
  2. Step 2: Convert to fraction form
    153,364.28/211,638.59 = 85,381.26/x
  3. Step 3: Cross multiply
    153,364.28x = 211,638.59 × 85,381.26
  4. Step 4: Simplify right side
    153,364.28x = 18,069,969,051.92
  5. Step 5: Solve for x
    x = 18,069,969,051.92/153,364.28
  6. Step 6: Final answer
    x = 117,823.85

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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.