Home / 117,663.72-162,417.60-69,916.79

Finding the Fourth Proportional to 117,663.72, 162,417.60 and 69,916.79

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Solution

The fourth proportional to 117,663.72, 162,417.60 and 69,916.79 is: 96,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,663.72 : 162,417.60 = 69,916.79 : x
  2. Step 2: Convert to fraction form
    117,663.72/162,417.60 = 69,916.79/x
  3. Step 3: Cross multiply
    117,663.72x = 162,417.60 × 69,916.79
  4. Step 4: Simplify right side
    117,663.72x = 11,355,716,419.42
  5. Step 5: Solve for x
    x = 11,355,716,419.42/117,663.72
  6. Step 6: Final answer
    x = 96,509.92

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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.