Home / 103,622.40-143,009.28-63,354.24

Finding the Fourth Proportional to 103,622.40, 143,009.28 and 63,354.24

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Solution

The fourth proportional to 103,622.40, 143,009.28 and 63,354.24 is: 87,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,622.40 : 143,009.28 = 63,354.24 : x
  2. Step 2: Convert to fraction form
    103,622.40/143,009.28 = 63,354.24/x
  3. Step 3: Cross multiply
    103,622.40x = 143,009.28 × 63,354.24
  4. Step 4: Simplify right side
    103,622.40x = 9,060,244,247.35
  5. Step 5: Solve for x
    x = 9,060,244,247.35/103,622.40
  6. Step 6: Final answer
    x = 87,435.19

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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.