Home / 152,477.28-210,418.64-85,409.12

Finding the Fourth Proportional to 152,477.28, 210,418.64 and 85,409.12

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Solution

The fourth proportional to 152,477.28, 210,418.64 and 85,409.12 is: 117,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,477.28 : 210,418.64 = 85,409.12 : x
  2. Step 2: Convert to fraction form
    152,477.28/210,418.64 = 85,409.12/x
  3. Step 3: Cross multiply
    152,477.28x = 210,418.64 × 85,409.12
  4. Step 4: Simplify right side
    152,477.28x = 17,971,670,874.00
  5. Step 5: Solve for x
    x = 17,971,670,874.00/152,477.28
  6. Step 6: Final answer
    x = 117,864.58

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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.