Home / 118,529.68-163,476.48-100,683.76

Finding the Fourth Proportional to 118,529.68, 163,476.48 and 100,683.76

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Solution

The fourth proportional to 118,529.68, 163,476.48 and 100,683.76 is: 138,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,529.68 : 163,476.48 = 100,683.76 : x
  2. Step 2: Convert to fraction form
    118,529.68/163,476.48 = 100,683.76/x
  3. Step 3: Cross multiply
    118,529.68x = 163,476.48 × 100,683.76
  4. Step 4: Simplify right side
    118,529.68x = 16,459,426,677.96
  5. Step 5: Solve for x
    x = 16,459,426,677.96/118,529.68
  6. Step 6: Final answer
    x = 138,863.34

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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.