Home / 102,386.42-153,580.02-31,308.74

Finding the Fourth Proportional to 102,386.42, 153,580.02 and 31,308.74

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Solution

The fourth proportional to 102,386.42, 153,580.02 and 31,308.74 is: 46,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,386.42 : 153,580.02 = 31,308.74 : x
  2. Step 2: Convert to fraction form
    102,386.42/153,580.02 = 31,308.74/x
  3. Step 3: Cross multiply
    102,386.42x = 153,580.02 × 31,308.74
  4. Step 4: Simplify right side
    102,386.42x = 4,808,396,915.37
  5. Step 5: Solve for x
    x = 4,808,396,915.37/102,386.42
  6. Step 6: Final answer
    x = 46,963.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.