Home / 151,484.19-209,038.63-83,497.40

Finding the Fourth Proportional to 151,484.19, 209,038.63 and 83,497.40

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Solution

The fourth proportional to 151,484.19, 209,038.63 and 83,497.40 is: 115,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,484.19 : 209,038.63 = 83,497.40 : x
  2. Step 2: Convert to fraction form
    151,484.19/209,038.63 = 83,497.40/x
  3. Step 3: Cross multiply
    151,484.19x = 209,038.63 × 83,497.40
  4. Step 4: Simplify right side
    151,484.19x = 17,454,181,791.08
  5. Step 5: Solve for x
    x = 17,454,181,791.08/151,484.19
  6. Step 6: Final answer
    x = 115,221.15

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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.