Home / 152,152.36-210,142.55-103,670.21

Finding the Fourth Proportional to 152,152.36, 210,142.55 and 103,670.21

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Solution

The fourth proportional to 152,152.36, 210,142.55 and 103,670.21 is: 143,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,152.36 : 210,142.55 = 103,670.21 : x
  2. Step 2: Convert to fraction form
    152,152.36/210,142.55 = 103,670.21/x
  3. Step 3: Cross multiply
    152,152.36x = 210,142.55 × 103,670.21
  4. Step 4: Simplify right side
    152,152.36x = 21,785,523,072.97
  5. Step 5: Solve for x
    x = 21,785,523,072.97/152,152.36
  6. Step 6: Final answer
    x = 143,182.29

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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.