Home / 223,070.40-307,837.35-121,095.72

Finding the Fourth Proportional to 223,070.40, 307,837.35 and 121,095.72

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Solution

The fourth proportional to 223,070.40, 307,837.35 and 121,095.72 is: 167,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,070.40 : 307,837.35 = 121,095.72 : x
  2. Step 2: Convert to fraction form
    223,070.40/307,837.35 = 121,095.72/x
  3. Step 3: Cross multiply
    223,070.40x = 307,837.35 × 121,095.72
  4. Step 4: Simplify right side
    223,070.40x = 37,277,785,541.14
  5. Step 5: Solve for x
    x = 37,277,785,541.14/223,070.40
  6. Step 6: Final answer
    x = 167,112.20

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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.