Home / 152,415.36-210,340.74-91,985.04

Finding the Fourth Proportional to 152,415.36, 210,340.74 and 91,985.04

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Solution

The fourth proportional to 152,415.36, 210,340.74 and 91,985.04 is: 126,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,415.36 : 210,340.74 = 91,985.04 : x
  2. Step 2: Convert to fraction form
    152,415.36/210,340.74 = 91,985.04/x
  3. Step 3: Cross multiply
    152,415.36x = 210,340.74 × 91,985.04
  4. Step 4: Simplify right side
    152,415.36x = 19,348,201,382.53
  5. Step 5: Solve for x
    x = 19,348,201,382.53/152,415.36
  6. Step 6: Final answer
    x = 126,943.91

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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.