Home / 102,184.20-153,213.06-42,989.40

Finding the Fourth Proportional to 102,184.20, 153,213.06 and 42,989.40

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Solution

The fourth proportional to 102,184.20, 153,213.06 and 42,989.40 is: 64,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,184.20 : 153,213.06 = 42,989.40 : x
  2. Step 2: Convert to fraction form
    102,184.20/153,213.06 = 42,989.40/x
  3. Step 3: Cross multiply
    102,184.20x = 153,213.06 × 42,989.40
  4. Step 4: Simplify right side
    102,184.20x = 6,586,537,521.56
  5. Step 5: Solve for x
    x = 6,586,537,521.56/102,184.20
  6. Step 6: Final answer
    x = 64,457.49

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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.