Home / 157,228.80-235,497.60-139,718.40

Finding the Fourth Proportional to 157,228.80, 235,497.60 and 139,718.40

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Solution

The fourth proportional to 157,228.80, 235,497.60 and 139,718.40 is: 209,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,228.80 : 235,497.60 = 139,718.40 : x
  2. Step 2: Convert to fraction form
    157,228.80/235,497.60 = 139,718.40/x
  3. Step 3: Cross multiply
    157,228.80x = 235,497.60 × 139,718.40
  4. Step 4: Simplify right side
    157,228.80x = 32,903,347,875.84
  5. Step 5: Solve for x
    x = 32,903,347,875.84/157,228.80
  6. Step 6: Final answer
    x = 209,270.49

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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.