Home / 168,510.79-232,438.09-128,136.04

Finding the Fourth Proportional to 168,510.79, 232,438.09 and 128,136.04

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Solution

The fourth proportional to 168,510.79, 232,438.09 and 128,136.04 is: 176,746.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,510.79 : 232,438.09 = 128,136.04 : x
  2. Step 2: Convert to fraction form
    168,510.79/232,438.09 = 128,136.04/x
  3. Step 3: Cross multiply
    168,510.79x = 232,438.09 × 128,136.04
  4. Step 4: Simplify right side
    168,510.79x = 29,783,696,397.76
  5. Step 5: Solve for x
    x = 29,783,696,397.76/168,510.79
  6. Step 6: Final answer
    x = 176,746.52

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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.