Home / 79,220.16-118,216.02-70,807.50

Finding the Fourth Proportional to 79,220.16, 118,216.02 and 70,807.50

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Solution

The fourth proportional to 79,220.16, 118,216.02 and 70,807.50 is: 105,662.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,220.16 : 118,216.02 = 70,807.50 : x
  2. Step 2: Convert to fraction form
    79,220.16/118,216.02 = 70,807.50/x
  3. Step 3: Cross multiply
    79,220.16x = 118,216.02 × 70,807.50
  4. Step 4: Simplify right side
    79,220.16x = 8,370,581,101.68
  5. Step 5: Solve for x
    x = 8,370,581,101.68/79,220.16
  6. Step 6: Final answer
    x = 105,662.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.