Home / 145,439.96-200,541.67-102,405.70

Finding the Fourth Proportional to 145,439.96, 200,541.67 and 102,405.70

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Solution

The fourth proportional to 145,439.96, 200,541.67 and 102,405.70 is: 141,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,439.96 : 200,541.67 = 102,405.70 : x
  2. Step 2: Convert to fraction form
    145,439.96/200,541.67 = 102,405.70/x
  3. Step 3: Cross multiply
    145,439.96x = 200,541.67 × 102,405.70
  4. Step 4: Simplify right side
    145,439.96x = 20,536,610,095.52
  5. Step 5: Solve for x
    x = 20,536,610,095.52/145,439.96
  6. Step 6: Final answer
    x = 141,203.35

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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.