Home / 208,807.32-288,136.80-118,158.60

Finding the Fourth Proportional to 208,807.32, 288,136.80 and 118,158.60

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Solution

The fourth proportional to 208,807.32, 288,136.80 and 118,158.60 is: 163,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,807.32 : 288,136.80 = 118,158.60 : x
  2. Step 2: Convert to fraction form
    208,807.32/288,136.80 = 118,158.60/x
  3. Step 3: Cross multiply
    208,807.32x = 288,136.80 × 118,158.60
  4. Step 4: Simplify right side
    208,807.32x = 34,045,840,896.48
  5. Step 5: Solve for x
    x = 34,045,840,896.48/208,807.32
  6. Step 6: Final answer
    x = 163,049.08

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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.