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Finding the Fourth Proportional to 180,437.85, 249,030.63 and 103,942.08

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Solution

The fourth proportional to 180,437.85, 249,030.63 and 103,942.08 is: 143,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,437.85 : 249,030.63 = 103,942.08 : x
  2. Step 2: Convert to fraction form
    180,437.85/249,030.63 = 103,942.08/x
  3. Step 3: Cross multiply
    180,437.85x = 249,030.63 × 103,942.08
  4. Step 4: Simplify right side
    180,437.85x = 25,884,761,665.91
  5. Step 5: Solve for x
    x = 25,884,761,665.91/180,437.85
  6. Step 6: Final answer
    x = 143,455.28

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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.