Home / 153,010.31-211,154.33-85,033.62

Finding the Fourth Proportional to 153,010.31, 211,154.33 and 85,033.62

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Solution

The fourth proportional to 153,010.31, 211,154.33 and 85,033.62 is: 117,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,010.31 : 211,154.33 = 85,033.62 : x
  2. Step 2: Convert to fraction form
    153,010.31/211,154.33 = 85,033.62/x
  3. Step 3: Cross multiply
    153,010.31x = 211,154.33 × 85,033.62
  4. Step 4: Simplify right side
    153,010.31x = 17,955,216,633.41
  5. Step 5: Solve for x
    x = 17,955,216,633.41/153,010.31
  6. Step 6: Final answer
    x = 117,346.45

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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.