Home / 153,316.40-211,576.28-86,248.40

Finding the Fourth Proportional to 153,316.40, 211,576.28 and 86,248.40

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Solution

The fourth proportional to 153,316.40, 211,576.28 and 86,248.40 is: 119,022.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,316.40 : 211,576.28 = 86,248.40 : x
  2. Step 2: Convert to fraction form
    153,316.40/211,576.28 = 86,248.40/x
  3. Step 3: Cross multiply
    153,316.40x = 211,576.28 × 86,248.40
  4. Step 4: Simplify right side
    153,316.40x = 18,248,115,627.95
  5. Step 5: Solve for x
    x = 18,248,115,627.95/153,316.40
  6. Step 6: Final answer
    x = 119,022.59

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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.