Home / 152,108.40-228,302.10-77,280.60

Finding the Fourth Proportional to 152,108.40, 228,302.10 and 77,280.60

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Solution

The fourth proportional to 152,108.40, 228,302.10 and 77,280.60 is: 115,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,108.40 : 228,302.10 = 77,280.60 : x
  2. Step 2: Convert to fraction form
    152,108.40/228,302.10 = 77,280.60/x
  3. Step 3: Cross multiply
    152,108.40x = 228,302.10 × 77,280.60
  4. Step 4: Simplify right side
    152,108.40x = 17,643,323,269.26
  5. Step 5: Solve for x
    x = 17,643,323,269.26/152,108.40
  6. Step 6: Final answer
    x = 115,991.77

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1.5x scale

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.