Home / 153,485.07-211,823.67-89,822.85

Finding the Fourth Proportional to 153,485.07, 211,823.67 and 89,822.85

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Solution

The fourth proportional to 153,485.07, 211,823.67 and 89,822.85 is: 123,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,485.07 : 211,823.67 = 89,822.85 : x
  2. Step 2: Convert to fraction form
    153,485.07/211,823.67 = 89,822.85/x
  3. Step 3: Cross multiply
    153,485.07x = 211,823.67 × 89,822.85
  4. Step 4: Simplify right side
    153,485.07x = 19,026,605,736.86
  5. Step 5: Solve for x
    x = 19,026,605,736.86/153,485.07
  6. Step 6: Final answer
    x = 123,963.89

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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.