Home / 145,772.31-201,097.02-85,305.87

Finding the Fourth Proportional to 145,772.31, 201,097.02 and 85,305.87

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Solution

The fourth proportional to 145,772.31, 201,097.02 and 85,305.87 is: 117,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,772.31 : 201,097.02 = 85,305.87 : x
  2. Step 2: Convert to fraction form
    145,772.31/201,097.02 = 85,305.87/x
  3. Step 3: Cross multiply
    145,772.31x = 201,097.02 × 85,305.87
  4. Step 4: Simplify right side
    145,772.31x = 17,154,756,245.51
  5. Step 5: Solve for x
    x = 17,154,756,245.51/145,772.31
  6. Step 6: Final answer
    x = 117,681.86

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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.