Home / 145,853.21-218,916.36-89,802.74

Finding the Fourth Proportional to 145,853.21, 218,916.36 and 89,802.74

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Solution

The fourth proportional to 145,853.21, 218,916.36 and 89,802.74 is: 134,788.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,853.21 : 218,916.36 = 89,802.74 : x
  2. Step 2: Convert to fraction form
    145,853.21/218,916.36 = 89,802.74/x
  3. Step 3: Cross multiply
    145,853.21x = 218,916.36 × 89,802.74
  4. Step 4: Simplify right side
    145,853.21x = 19,659,288,958.83
  5. Step 5: Solve for x
    x = 19,659,288,958.83/145,853.21
  6. Step 6: Final answer
    x = 134,788.18

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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.