Home / 158,710.51-219,020.37-87,095.03

Finding the Fourth Proportional to 158,710.51, 219,020.37 and 87,095.03

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Solution

The fourth proportional to 158,710.51, 219,020.37 and 87,095.03 is: 120,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,710.51 : 219,020.37 = 87,095.03 : x
  2. Step 2: Convert to fraction form
    158,710.51/219,020.37 = 87,095.03/x
  3. Step 3: Cross multiply
    158,710.51x = 219,020.37 × 87,095.03
  4. Step 4: Simplify right side
    158,710.51x = 19,075,585,695.76
  5. Step 5: Solve for x
    x = 19,075,585,695.76/158,710.51
  6. Step 6: Final answer
    x = 120,191.07

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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.