Home / 136,875.30-205,247.34-70,281.16

Finding the Fourth Proportional to 136,875.30, 205,247.34 and 70,281.16

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Solution

The fourth proportional to 136,875.30, 205,247.34 and 70,281.16 is: 105,388.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,875.30 : 205,247.34 = 70,281.16 : x
  2. Step 2: Convert to fraction form
    136,875.30/205,247.34 = 70,281.16/x
  3. Step 3: Cross multiply
    136,875.30x = 205,247.34 × 70,281.16
  4. Step 4: Simplify right side
    136,875.30x = 14,425,021,142.11
  5. Step 5: Solve for x
    x = 14,425,021,142.11/136,875.30
  6. Step 6: Final answer
    x = 105,388.05

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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.