Home / 145,237.02-200,445.87-81,574.80

Finding the Fourth Proportional to 145,237.02, 200,445.87 and 81,574.80

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Solution

The fourth proportional to 145,237.02, 200,445.87 and 81,574.80 is: 112,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,237.02 : 200,445.87 = 81,574.80 : x
  2. Step 2: Convert to fraction form
    145,237.02/200,445.87 = 81,574.80/x
  3. Step 3: Cross multiply
    145,237.02x = 200,445.87 × 81,574.80
  4. Step 4: Simplify right side
    145,237.02x = 16,351,331,756.08
  5. Step 5: Solve for x
    x = 16,351,331,756.08/145,237.02
  6. Step 6: Final answer
    x = 112,583.77

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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.