Home / 100,316.64-139,070.76-94,990.24

Finding the Fourth Proportional to 100,316.64, 139,070.76 and 94,990.24

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Solution

The fourth proportional to 100,316.64, 139,070.76 and 94,990.24 is: 131,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,316.64 : 139,070.76 = 94,990.24 : x
  2. Step 2: Convert to fraction form
    100,316.64/139,070.76 = 94,990.24/x
  3. Step 3: Cross multiply
    100,316.64x = 139,070.76 × 94,990.24
  4. Step 4: Simplify right side
    100,316.64x = 13,210,364,869.38
  5. Step 5: Solve for x
    x = 13,210,364,869.38/100,316.64
  6. Step 6: Final answer
    x = 131,686.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.