Home / 145,455.63-200,614.89-99,542.46

Finding the Fourth Proportional to 145,455.63, 200,614.89 and 99,542.46

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Solution

The fourth proportional to 145,455.63, 200,614.89 and 99,542.46 is: 137,290.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,455.63 : 200,614.89 = 99,542.46 : x
  2. Step 2: Convert to fraction form
    145,455.63/200,614.89 = 99,542.46/x
  3. Step 3: Cross multiply
    145,455.63x = 200,614.89 × 99,542.46
  4. Step 4: Simplify right side
    145,455.63x = 19,969,699,663.23
  5. Step 5: Solve for x
    x = 19,969,699,663.23/145,455.63
  6. Step 6: Final answer
    x = 137,290.66

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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.