Home / 145,118.06-200,263.02-81,466.64

Finding the Fourth Proportional to 145,118.06, 200,263.02 and 81,466.64

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Solution

The fourth proportional to 145,118.06, 200,263.02 and 81,466.64 is: 112,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,118.06 : 200,263.02 = 81,466.64 : x
  2. Step 2: Convert to fraction form
    145,118.06/200,263.02 = 81,466.64/x
  3. Step 3: Cross multiply
    145,118.06x = 200,263.02 × 81,466.64
  4. Step 4: Simplify right side
    145,118.06x = 16,314,755,355.65
  5. Step 5: Solve for x
    x = 16,314,755,355.65/145,118.06
  6. Step 6: Final answer
    x = 112,424.02

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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.