Home / 145,853.25-218,439.94-140,802.15

Finding the Fourth Proportional to 145,853.25, 218,439.94 and 140,802.15

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Solution

The fourth proportional to 145,853.25, 218,439.94 and 140,802.15 is: 210,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.25 : 218,439.94 = 140,802.15 : x
  2. Step 2: Convert to fraction form
    145,853.25/218,439.94 = 140,802.15/x
  3. Step 3: Cross multiply
    145,853.25x = 218,439.94 × 140,802.15
  4. Step 4: Simplify right side
    145,853.25x = 30,756,813,197.87
  5. Step 5: Solve for x
    x = 30,756,813,197.87/145,853.25
  6. Step 6: Final answer
    x = 210,875.06

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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.