Home / 145,678.70-201,043.41-88,319.81

Finding the Fourth Proportional to 145,678.70, 201,043.41 and 88,319.81

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Solution

The fourth proportional to 145,678.70, 201,043.41 and 88,319.81 is: 121,885.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678.70 : 201,043.41 = 88,319.81 : x
  2. Step 2: Convert to fraction form
    145,678.70/201,043.41 = 88,319.81/x
  3. Step 3: Cross multiply
    145,678.70x = 201,043.41 × 88,319.81
  4. Step 4: Simplify right side
    145,678.70x = 17,756,115,772.95
  5. Step 5: Solve for x
    x = 17,756,115,772.95/145,678.70
  6. Step 6: Final answer
    x = 121,885.46

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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.