Home / 145,163.09-217,659.88-56,312.77

Finding the Fourth Proportional to 145,163.09, 217,659.88 and 56,312.77

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Solution

The fourth proportional to 145,163.09, 217,659.88 and 56,312.77 is: 84,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,163.09 : 217,659.88 = 56,312.77 : x
  2. Step 2: Convert to fraction form
    145,163.09/217,659.88 = 56,312.77/x
  3. Step 3: Cross multiply
    145,163.09x = 217,659.88 × 56,312.77
  4. Step 4: Simplify right side
    145,163.09x = 12,257,030,901.45
  5. Step 5: Solve for x
    x = 12,257,030,901.45/145,163.09
  6. Step 6: Final answer
    x = 84,436.28

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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.