Home / 115,282.98-158,916.33-90,088.74

Finding the Fourth Proportional to 115,282.98, 158,916.33 and 90,088.74

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Solution

The fourth proportional to 115,282.98, 158,916.33 and 90,088.74 is: 124,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,282.98 : 158,916.33 = 90,088.74 : x
  2. Step 2: Convert to fraction form
    115,282.98/158,916.33 = 90,088.74/x
  3. Step 3: Cross multiply
    115,282.98x = 158,916.33 × 90,088.74
  4. Step 4: Simplify right side
    115,282.98x = 14,316,571,935.12
  5. Step 5: Solve for x
    x = 14,316,571,935.12/115,282.98
  6. Step 6: Final answer
    x = 124,186.35

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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.