Home / 158,384.13-218,585.76-90,411.32

Finding the Fourth Proportional to 158,384.13, 218,585.76 and 90,411.32

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Solution

The fourth proportional to 158,384.13, 218,585.76 and 90,411.32 is: 124,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,384.13 : 218,585.76 = 90,411.32 : x
  2. Step 2: Convert to fraction form
    158,384.13/218,585.76 = 90,411.32/x
  3. Step 3: Cross multiply
    158,384.13x = 218,585.76 × 90,411.32
  4. Step 4: Simplify right side
    158,384.13x = 19,762,627,302.23
  5. Step 5: Solve for x
    x = 19,762,627,302.23/158,384.13
  6. Step 6: Final answer
    x = 124,776.57

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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.