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Finding the Fourth Proportional to 181,088.34, 249,890.48 and 100,511.16

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Solution

The fourth proportional to 181,088.34, 249,890.48 and 100,511.16 is: 138,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,088.34 : 249,890.48 = 100,511.16 : x
  2. Step 2: Convert to fraction form
    181,088.34/249,890.48 = 100,511.16/x
  3. Step 3: Cross multiply
    181,088.34x = 249,890.48 × 100,511.16
  4. Step 4: Simplify right side
    181,088.34x = 25,116,780,265.75
  5. Step 5: Solve for x
    x = 25,116,780,265.75/181,088.34
  6. Step 6: Final answer
    x = 138,699.05

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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.