Home / 120,153.41-180,318.28-53,637.18

Finding the Fourth Proportional to 120,153.41, 180,318.28 and 53,637.18

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Solution

The fourth proportional to 120,153.41, 180,318.28 and 53,637.18 is: 80,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,153.41 : 180,318.28 = 53,637.18 : x
  2. Step 2: Convert to fraction form
    120,153.41/180,318.28 = 53,637.18/x
  3. Step 3: Cross multiply
    120,153.41x = 180,318.28 × 53,637.18
  4. Step 4: Simplify right side
    120,153.41x = 9,671,764,041.65
  5. Step 5: Solve for x
    x = 9,671,764,041.65/120,153.41
  6. Step 6: Final answer
    x = 80,495.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.