Home / 153,776.02-212,211.06-90,113.77

Finding the Fourth Proportional to 153,776.02, 212,211.06 and 90,113.77

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Solution

The fourth proportional to 153,776.02, 212,211.06 and 90,113.77 is: 124,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,776.02 : 212,211.06 = 90,113.77 : x
  2. Step 2: Convert to fraction form
    153,776.02/212,211.06 = 90,113.77/x
  3. Step 3: Cross multiply
    153,776.02x = 212,211.06 × 90,113.77
  4. Step 4: Simplify right side
    153,776.02x = 19,123,138,146.28
  5. Step 5: Solve for x
    x = 19,123,138,146.28/153,776.02
  6. Step 6: Final answer
    x = 124,357.09

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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.