Home / 117,123.24-161,628.84-63,407.28

Finding the Fourth Proportional to 117,123.24, 161,628.84 and 63,407.28

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Solution

The fourth proportional to 117,123.24, 161,628.84 and 63,407.28 is: 87,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,123.24 : 161,628.84 = 63,407.28 : x
  2. Step 2: Convert to fraction form
    117,123.24/161,628.84 = 63,407.28/x
  3. Step 3: Cross multiply
    117,123.24x = 161,628.84 × 63,407.28
  4. Step 4: Simplify right side
    117,123.24x = 10,248,445,113.96
  5. Step 5: Solve for x
    x = 10,248,445,113.96/117,123.24
  6. Step 6: Final answer
    x = 87,501.38

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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.