Home / 145,345.69-200,581.60-87,995.53

Finding the Fourth Proportional to 145,345.69, 200,581.60 and 87,995.53

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Solution

The fourth proportional to 145,345.69, 200,581.60 and 87,995.53 is: 121,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,345.69 : 200,581.60 = 87,995.53 : x
  2. Step 2: Convert to fraction form
    145,345.69/200,581.60 = 87,995.53/x
  3. Step 3: Cross multiply
    145,345.69x = 200,581.60 × 87,995.53
  4. Step 4: Simplify right side
    145,345.69x = 17,650,283,197.34
  5. Step 5: Solve for x
    x = 17,650,283,197.34/145,345.69
  6. Step 6: Final answer
    x = 121,436.58

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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.