Home / 152,140.40-228,210.60-77,272.10

Finding the Fourth Proportional to 152,140.40, 228,210.60 and 77,272.10

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Solution

The fourth proportional to 152,140.40, 228,210.60 and 77,272.10 is: 115,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,140.40 : 228,210.60 = 77,272.10 : x
  2. Step 2: Convert to fraction form
    152,140.40/228,210.60 = 77,272.10/x
  3. Step 3: Cross multiply
    152,140.40x = 228,210.60 × 77,272.10
  4. Step 4: Simplify right side
    152,140.40x = 17,634,312,304.26
  5. Step 5: Solve for x
    x = 17,634,312,304.26/152,140.40
  6. Step 6: Final answer
    x = 115,908.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.