Home / 139,875.08-193,025.18-76,213.40

Finding the Fourth Proportional to 139,875.08, 193,025.18 and 76,213.40

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Solution

The fourth proportional to 139,875.08, 193,025.18 and 76,213.40 is: 105,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,875.08 : 193,025.18 = 76,213.40 : x
  2. Step 2: Convert to fraction form
    139,875.08/193,025.18 = 76,213.40/x
  3. Step 3: Cross multiply
    139,875.08x = 193,025.18 × 76,213.40
  4. Step 4: Simplify right side
    139,875.08x = 14,711,105,253.41
  5. Step 5: Solve for x
    x = 14,711,105,253.41/139,875.08
  6. Step 6: Final answer
    x = 105,173.17

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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.