Home / 156,779.79-216,360.14-85,163.91

Finding the Fourth Proportional to 156,779.79, 216,360.14 and 85,163.91

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Solution

The fourth proportional to 156,779.79, 216,360.14 and 85,163.91 is: 117,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,779.79 : 216,360.14 = 85,163.91 : x
  2. Step 2: Convert to fraction form
    156,779.79/216,360.14 = 85,163.91/x
  3. Step 3: Cross multiply
    156,779.79x = 216,360.14 × 85,163.91
  4. Step 4: Simplify right side
    156,779.79x = 18,426,075,490.55
  5. Step 5: Solve for x
    x = 18,426,075,490.55/156,779.79
  6. Step 6: Final answer
    x = 117,528.38

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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.