Home / 145,275.18-200,444.49-84,811.20

Finding the Fourth Proportional to 145,275.18, 200,444.49 and 84,811.20

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Solution

The fourth proportional to 145,275.18, 200,444.49 and 84,811.20 is: 117,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,275.18 : 200,444.49 = 84,811.20 : x
  2. Step 2: Convert to fraction form
    145,275.18/200,444.49 = 84,811.20/x
  3. Step 3: Cross multiply
    145,275.18x = 200,444.49 × 84,811.20
  4. Step 4: Simplify right side
    145,275.18x = 16,999,937,730.29
  5. Step 5: Solve for x
    x = 16,999,937,730.29/145,275.18
  6. Step 6: Final answer
    x = 117,018.87

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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.