Home / 153,386.40-211,671.21-88,864.43

Finding the Fourth Proportional to 153,386.40, 211,671.21 and 88,864.43

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Solution

The fourth proportional to 153,386.40, 211,671.21 and 88,864.43 is: 122,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,386.40 : 211,671.21 = 88,864.43 : x
  2. Step 2: Convert to fraction form
    153,386.40/211,671.21 = 88,864.43/x
  3. Step 3: Cross multiply
    153,386.40x = 211,671.21 × 88,864.43
  4. Step 4: Simplify right side
    153,386.40x = 18,810,040,826.23
  5. Step 5: Solve for x
    x = 18,810,040,826.23/153,386.40
  6. Step 6: Final answer
    x = 122,631.74

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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.