Home / 153,897.07-212,381.54-96,538.81

Finding the Fourth Proportional to 153,897.07, 212,381.54 and 96,538.81

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Solution

The fourth proportional to 153,897.07, 212,381.54 and 96,538.81 is: 133,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,897.07 : 212,381.54 = 96,538.81 : x
  2. Step 2: Convert to fraction form
    153,897.07/212,381.54 = 96,538.81/x
  3. Step 3: Cross multiply
    153,897.07x = 212,381.54 × 96,538.81
  4. Step 4: Simplify right side
    153,897.07x = 20,503,061,137.57
  5. Step 5: Solve for x
    x = 20,503,061,137.57/153,897.07
  6. Step 6: Final answer
    x = 133,225.81

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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.