Home / 289,543.15-434,166.64-121,017.48

Finding the Fourth Proportional to 289,543.15, 434,166.64 and 121,017.48

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Solution

The fourth proportional to 289,543.15, 434,166.64 and 121,017.48 is: 181,464.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,543.15 : 434,166.64 = 121,017.48 : x
  2. Step 2: Convert to fraction form
    289,543.15/434,166.64 = 121,017.48/x
  3. Step 3: Cross multiply
    289,543.15x = 434,166.64 × 121,017.48
  4. Step 4: Simplify right side
    289,543.15x = 52,541,754,452.26
  5. Step 5: Solve for x
    x = 52,541,754,452.26/289,543.15
  6. Step 6: Final answer
    x = 181,464.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.