Home / 156,925.49-216,561.40-85,310.35

Finding the Fourth Proportional to 156,925.49, 216,561.40 and 85,310.35

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Solution

The fourth proportional to 156,925.49, 216,561.40 and 85,310.35 is: 117,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,925.49 : 216,561.40 = 85,310.35 : x
  2. Step 2: Convert to fraction form
    156,925.49/216,561.40 = 85,310.35/x
  3. Step 3: Cross multiply
    156,925.49x = 216,561.40 × 85,310.35
  4. Step 4: Simplify right side
    156,925.49x = 18,474,928,075.81
  5. Step 5: Solve for x
    x = 18,474,928,075.81/156,925.49
  6. Step 6: Final answer
    x = 117,730.58

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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.