Home / 156,628.93-216,142.43-85,007.52

Finding the Fourth Proportional to 156,628.93, 216,142.43 and 85,007.52

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Solution

The fourth proportional to 156,628.93, 216,142.43 and 85,007.52 is: 117,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.93 : 216,142.43 = 85,007.52 : x
  2. Step 2: Convert to fraction form
    156,628.93/216,142.43 = 85,007.52/x
  3. Step 3: Cross multiply
    156,628.93x = 216,142.43 × 85,007.52
  4. Step 4: Simplify right side
    156,628.93x = 18,373,731,941.07
  5. Step 5: Solve for x
    x = 18,373,731,941.07/156,628.93
  6. Step 6: Final answer
    x = 117,307.40

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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.