Home / 99,069.50-136,715.90-56,628.95

Finding the Fourth Proportional to 99,069.50, 136,715.90 and 56,628.95

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Solution

The fourth proportional to 99,069.50, 136,715.90 and 56,628.95 is: 78,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,069.50 : 136,715.90 = 56,628.95 : x
  2. Step 2: Convert to fraction form
    99,069.50/136,715.90 = 56,628.95/x
  3. Step 3: Cross multiply
    99,069.50x = 136,715.90 × 56,628.95
  4. Step 4: Simplify right side
    99,069.50x = 7,742,076,898.58
  5. Step 5: Solve for x
    x = 7,742,076,898.58/99,069.50
  6. Step 6: Final answer
    x = 78,147.94

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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.