Home / 105,291.48-157,928.35-45,317.53

Finding the Fourth Proportional to 105,291.48, 157,928.35 and 45,317.53

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Solution

The fourth proportional to 105,291.48, 157,928.35 and 45,317.53 is: 67,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,291.48 : 157,928.35 = 45,317.53 : x
  2. Step 2: Convert to fraction form
    105,291.48/157,928.35 = 45,317.53/x
  3. Step 3: Cross multiply
    105,291.48x = 157,928.35 × 45,317.53
  4. Step 4: Simplify right side
    105,291.48x = 7,156,922,738.98
  5. Step 5: Solve for x
    x = 7,156,922,738.98/105,291.48
  6. Step 6: Final answer
    x = 67,972.48

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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.