Home / 151,877.36-209,602.25-87,366.35

Finding the Fourth Proportional to 151,877.36, 209,602.25 and 87,366.35

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Solution

The fourth proportional to 151,877.36, 209,602.25 and 87,366.35 is: 120,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,877.36 : 209,602.25 = 87,366.35 : x
  2. Step 2: Convert to fraction form
    151,877.36/209,602.25 = 87,366.35/x
  3. Step 3: Cross multiply
    151,877.36x = 209,602.25 × 87,366.35
  4. Step 4: Simplify right side
    151,877.36x = 18,312,183,097.46
  5. Step 5: Solve for x
    x = 18,312,183,097.46/151,877.36
  6. Step 6: Final answer
    x = 120,572.17

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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.