Home / 117,602.28-162,275.40-69,838.20

Finding the Fourth Proportional to 117,602.28, 162,275.40 and 69,838.20

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Solution

The fourth proportional to 117,602.28, 162,275.40 and 69,838.20 is: 96,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,602.28 : 162,275.40 = 69,838.20 : x
  2. Step 2: Convert to fraction form
    117,602.28/162,275.40 = 69,838.20/x
  3. Step 3: Cross multiply
    117,602.28x = 162,275.40 × 69,838.20
  4. Step 4: Simplify right side
    117,602.28x = 11,333,021,840.28
  5. Step 5: Solve for x
    x = 11,333,021,840.28/117,602.28
  6. Step 6: Final answer
    x = 96,367.36

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1.5x scale

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.