Home / 158,711.51-219,021.75-87,096.03

Finding the Fourth Proportional to 158,711.51, 219,021.75 and 87,096.03

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Solution

The fourth proportional to 158,711.51, 219,021.75 and 87,096.03 is: 120,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,711.51 : 219,021.75 = 87,096.03 : x
  2. Step 2: Convert to fraction form
    158,711.51/219,021.75 = 87,096.03/x
  3. Step 3: Cross multiply
    158,711.51x = 219,021.75 × 87,096.03
  4. Step 4: Simplify right side
    158,711.51x = 19,075,924,908.65
  5. Step 5: Solve for x
    x = 19,075,924,908.65/158,711.51
  6. Step 6: Final answer
    x = 120,192.45

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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.