Home / 153,916.02-212,393.16-90,241.50

Finding the Fourth Proportional to 153,916.02, 212,393.16 and 90,241.50

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Solution

The fourth proportional to 153,916.02, 212,393.16 and 90,241.50 is: 124,526.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,916.02 : 212,393.16 = 90,241.50 : x
  2. Step 2: Convert to fraction form
    153,916.02/212,393.16 = 90,241.50/x
  3. Step 3: Cross multiply
    153,916.02x = 212,393.16 × 90,241.50
  4. Step 4: Simplify right side
    153,916.02x = 19,166,677,348.14
  5. Step 5: Solve for x
    x = 19,166,677,348.14/153,916.02
  6. Step 6: Final answer
    x = 124,526.85

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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.