Home / 145,817.60-201,242.56-85,384.48

Finding the Fourth Proportional to 145,817.60, 201,242.56 and 85,384.48

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Solution

The fourth proportional to 145,817.60, 201,242.56 and 85,384.48 is: 117,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,817.60 : 201,242.56 = 85,384.48 : x
  2. Step 2: Convert to fraction form
    145,817.60/201,242.56 = 85,384.48/x
  3. Step 3: Cross multiply
    145,817.60x = 201,242.56 × 85,384.48
  4. Step 4: Simplify right side
    145,817.60x = 17,182,991,339.47
  5. Step 5: Solve for x
    x = 17,182,991,339.47/145,817.60
  6. Step 6: Final answer
    x = 117,838.94

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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.