Home / 145,159.22-200,314.58-81,499.70

Finding the Fourth Proportional to 145,159.22, 200,314.58 and 81,499.70

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Solution

The fourth proportional to 145,159.22, 200,314.58 and 81,499.70 is: 112,466.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,159.22 : 200,314.58 = 81,499.70 : x
  2. Step 2: Convert to fraction form
    145,159.22/200,314.58 = 81,499.70/x
  3. Step 3: Cross multiply
    145,159.22x = 200,314.58 × 81,499.70
  4. Step 4: Simplify right side
    145,159.22x = 16,325,578,880.16
  5. Step 5: Solve for x
    x = 16,325,578,880.16/145,159.22
  6. Step 6: Final answer
    x = 112,466.70

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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.