Home / 103,572.55-142,949.73-64,828.34

Finding the Fourth Proportional to 103,572.55, 142,949.73 and 64,828.34

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Solution

The fourth proportional to 103,572.55, 142,949.73 and 64,828.34 is: 89,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,572.55 : 142,949.73 = 64,828.34 : x
  2. Step 2: Convert to fraction form
    103,572.55/142,949.73 = 64,828.34/x
  3. Step 3: Cross multiply
    103,572.55x = 142,949.73 × 64,828.34
  4. Step 4: Simplify right side
    103,572.55x = 9,267,193,763.77
  5. Step 5: Solve for x
    x = 9,267,193,763.77/103,572.55
  6. Step 6: Final answer
    x = 89,475.38

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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.