Home / 145,428.26-200,688.32-80,897.18

Finding the Fourth Proportional to 145,428.26, 200,688.32 and 80,897.18

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Solution

The fourth proportional to 145,428.26, 200,688.32 and 80,897.18 is: 111,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,428.26 : 200,688.32 = 80,897.18 : x
  2. Step 2: Convert to fraction form
    145,428.26/200,688.32 = 80,897.18/x
  3. Step 3: Cross multiply
    145,428.26x = 200,688.32 × 80,897.18
  4. Step 4: Simplify right side
    145,428.26x = 16,235,118,345.74
  5. Step 5: Solve for x
    x = 16,235,118,345.74/145,428.26
  6. Step 6: Final answer
    x = 111,636.62

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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.