Home / 152,434.36-210,321.42-87,923.32

Finding the Fourth Proportional to 152,434.36, 210,321.42 and 87,923.32

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Solution

The fourth proportional to 152,434.36, 210,321.42 and 87,923.32 is: 121,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,434.36 : 210,321.42 = 87,923.32 : x
  2. Step 2: Convert to fraction form
    152,434.36/210,321.42 = 87,923.32/x
  3. Step 3: Cross multiply
    152,434.36x = 210,321.42 × 87,923.32
  4. Step 4: Simplify right side
    152,434.36x = 18,492,157,513.51
  5. Step 5: Solve for x
    x = 18,492,157,513.51/152,434.36
  6. Step 6: Final answer
    x = 121,312.27

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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.