Home / 158,460.32-218,673.96-86,840.16

Finding the Fourth Proportional to 158,460.32, 218,673.96 and 86,840.16

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Solution

The fourth proportional to 158,460.32, 218,673.96 and 86,840.16 is: 119,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,460.32 : 218,673.96 = 86,840.16 : x
  2. Step 2: Convert to fraction form
    158,460.32/218,673.96 = 86,840.16/x
  3. Step 3: Cross multiply
    158,460.32x = 218,673.96 × 86,840.16
  4. Step 4: Simplify right side
    158,460.32x = 18,989,681,674.23
  5. Step 5: Solve for x
    x = 18,989,681,674.23/158,460.32
  6. Step 6: Final answer
    x = 119,838.72

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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.