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Finding the Fourth Proportional to 153,573.02, 211,902.72 and 85,588.28

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Solution

The fourth proportional to 153,573.02, 211,902.72 and 85,588.28 is: 118,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,573.02 : 211,902.72 = 85,588.28 : x
  2. Step 2: Convert to fraction form
    153,573.02/211,902.72 = 85,588.28/x
  3. Step 3: Cross multiply
    153,573.02x = 211,902.72 × 85,588.28
  4. Step 4: Simplify right side
    153,573.02x = 18,136,389,332.12
  5. Step 5: Solve for x
    x = 18,136,389,332.12/153,573.02
  6. Step 6: Final answer
    x = 118,096.20

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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.