Home / 153,703.07-212,110.41-84,790.97

Finding the Fourth Proportional to 153,703.07, 212,110.41 and 84,790.97

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Solution

The fourth proportional to 153,703.07, 212,110.41 and 84,790.97 is: 117,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,703.07 : 212,110.41 = 84,790.97 : x
  2. Step 2: Convert to fraction form
    153,703.07/212,110.41 = 84,790.97/x
  3. Step 3: Cross multiply
    153,703.07x = 212,110.41 × 84,790.97
  4. Step 4: Simplify right side
    153,703.07x = 17,985,047,463.83
  5. Step 5: Solve for x
    x = 17,985,047,463.83/153,703.07
  6. Step 6: Final answer
    x = 117,011.64

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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.