Home / 223,095.55-307,862.72-121,117.06

Finding the Fourth Proportional to 223,095.55, 307,862.72 and 121,117.06

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Solution

The fourth proportional to 223,095.55, 307,862.72 and 121,117.06 is: 167,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,095.55 : 307,862.72 = 121,117.06 : x
  2. Step 2: Convert to fraction form
    223,095.55/307,862.72 = 121,117.06/x
  3. Step 3: Cross multiply
    223,095.55x = 307,862.72 × 121,117.06
  4. Step 4: Simplify right side
    223,095.55x = 37,287,427,530.00
  5. Step 5: Solve for x
    x = 37,287,427,530.00/223,095.55
  6. Step 6: Final answer
    x = 167,136.58

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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.