Home / 208,298.60-287,370.66-121,069.18

Finding the Fourth Proportional to 208,298.60, 287,370.66 and 121,069.18

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Solution

The fourth proportional to 208,298.60, 287,370.66 and 121,069.18 is: 167,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,298.60 : 287,370.66 = 121,069.18 : x
  2. Step 2: Convert to fraction form
    208,298.60/287,370.66 = 121,069.18/x
  3. Step 3: Cross multiply
    208,298.60x = 287,370.66 × 121,069.18
  4. Step 4: Simplify right side
    208,298.60x = 34,791,730,162.26
  5. Step 5: Solve for x
    x = 34,791,730,162.26/208,298.60
  6. Step 6: Final answer
    x = 167,028.15

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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.