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Finding the Fourth Proportional to 145,974.61, 201,445.11 and 85,533.22

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Solution

The fourth proportional to 145,974.61, 201,445.11 and 85,533.22 is: 118,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,974.61 : 201,445.11 = 85,533.22 : x
  2. Step 2: Convert to fraction form
    145,974.61/201,445.11 = 85,533.22/x
  3. Step 3: Cross multiply
    145,974.61x = 201,445.11 × 85,533.22
  4. Step 4: Simplify right side
    145,974.61x = 17,230,247,904.33
  5. Step 5: Solve for x
    x = 17,230,247,904.33/145,974.61
  6. Step 6: Final answer
    x = 118,035.93

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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.