Home / 156,923.19-216,554.72-85,303.05

Finding the Fourth Proportional to 156,923.19, 216,554.72 and 85,303.05

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Solution

The fourth proportional to 156,923.19, 216,554.72 and 85,303.05 is: 117,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,923.19 : 216,554.72 = 85,303.05 : x
  2. Step 2: Convert to fraction form
    156,923.19/216,554.72 = 85,303.05/x
  3. Step 3: Cross multiply
    156,923.19x = 216,554.72 × 85,303.05
  4. Step 4: Simplify right side
    156,923.19x = 18,472,777,681.38
  5. Step 5: Solve for x
    x = 18,472,777,681.38/156,923.19
  6. Step 6: Final answer
    x = 117,718.60

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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.