Home / 157,698.03-217,590.80-90,617.07

Finding the Fourth Proportional to 157,698.03, 217,590.80 and 90,617.07

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Solution

The fourth proportional to 157,698.03, 217,590.80 and 90,617.07 is: 125,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,698.03 : 217,590.80 = 90,617.07 : x
  2. Step 2: Convert to fraction form
    157,698.03/217,590.80 = 90,617.07/x
  3. Step 3: Cross multiply
    157,698.03x = 217,590.80 × 90,617.07
  4. Step 4: Simplify right side
    157,698.03x = 19,717,440,301.87
  5. Step 5: Solve for x
    x = 19,717,440,301.87/157,698.03
  6. Step 6: Final answer
    x = 125,032.89

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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.