Home / 153,565.17-211,920.77-89,072.60

Finding the Fourth Proportional to 153,565.17, 211,920.77 and 89,072.60

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Solution

The fourth proportional to 153,565.17, 211,920.77 and 89,072.60 is: 122,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,565.17 : 211,920.77 = 89,072.60 : x
  2. Step 2: Convert to fraction form
    153,565.17/211,920.77 = 89,072.60/x
  3. Step 3: Cross multiply
    153,565.17x = 211,920.77 × 89,072.60
  4. Step 4: Simplify right side
    153,565.17x = 18,876,333,140.98
  5. Step 5: Solve for x
    x = 18,876,333,140.98/153,565.17
  6. Step 6: Final answer
    x = 122,920.67

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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.