Home / 153,581.34-211,935.52-85,605.74

Finding the Fourth Proportional to 153,581.34, 211,935.52 and 85,605.74

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Solution

The fourth proportional to 153,581.34, 211,935.52 and 85,605.74 is: 118,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,581.34 : 211,935.52 = 85,605.74 : x
  2. Step 2: Convert to fraction form
    153,581.34/211,935.52 = 85,605.74/x
  3. Step 3: Cross multiply
    153,581.34x = 211,935.52 × 85,605.74
  4. Step 4: Simplify right side
    153,581.34x = 18,142,897,021.88
  5. Step 5: Solve for x
    x = 18,142,897,021.88/153,581.34
  6. Step 6: Final answer
    x = 118,132.17

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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.