Home / 145,946.04-201,405.50-78,878.04

Finding the Fourth Proportional to 145,946.04, 201,405.50 and 78,878.04

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Solution

The fourth proportional to 145,946.04, 201,405.50 and 78,878.04 is: 108,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,946.04 : 201,405.50 = 78,878.04 : x
  2. Step 2: Convert to fraction form
    145,946.04/201,405.50 = 78,878.04/x
  3. Step 3: Cross multiply
    145,946.04x = 201,405.50 × 78,878.04
  4. Step 4: Simplify right side
    145,946.04x = 15,886,471,085.22
  5. Step 5: Solve for x
    x = 15,886,471,085.22/145,946.04
  6. Step 6: Final answer
    x = 108,851.68

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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.